[#BloombergLP-bdlf-MemFnInstance-2constructor-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlf.adoc[bdlf]::xref:BloombergLP/bdlf/MemFnInstance.adoc[MemFnInstance]::MemFnInstance
:relfileprefix: ../../../
:mrdocs:

Create a wrapper around the specified member function and object.

== Synopsis

Declared in `<bdlf_memfn.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
MemFnInstance(
    PROTOTYPE func,
    INSTANCE const& object,
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* basicAllocator = 0);
----

== Description

Create a member function pointer wrapper around the specified `func` member function pointer of the parameterized `PROTOTYPE`, that is invocable on the specified `object` instance of the parameterized `INSTANCE`. Optionally specify a `basicAllocator` used to supply memory. If `basicAllocator` is 0, the currently installed default allocator is used.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *func*
| member function pointer to wrap
| *object*
| instance on which the member function is invocable
| *basicAllocator*
| memory allocator; null uses the default
|===


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